The parts are 3D-printed from PLA plastic but can also be printed from PETG or any other suitable plastic. Layer height: 0.2 mm. The file micrometer_holder.stl should be printed twice, with one copy mirrored.

In addition to the printed parts, you will also need:

• A pair of micrometers with 25 mm spindle travel
• 2020N2 aluminum extrusion (in my build, length is 600 mm)
• Wooden board, 600 × 180 × 20 mm
• Cutting mat section, 600 × 160 mm
• M3 × 10 bolts, 9 pcs
• 3 × 10 wood screws, 6 pcs
• Steel wire, Ø 1.5 mm × 120 mm
• Several rubber bands
• Blade

The bolt holes require tapping with an M3 tap before assembly.